THE FORCES GENERATED WHEN DRILLING BITS ARE APPLIED VERTICALLY AND OBLIQUELY: ANALYTICAL ANALYSIS AND INFLUENCE ON NORMAL OPERATION AT ANGLES OF 15° AND 30° INCLINATION. American Journals [Internet]. 2026 Apr. 30 [cited 2026 May 10];47:33-42. Available from: https://americanjournal.org/index.php/ajtas/article/view/3521